关键词: 暗物质晕, 宇宙大尺度结构, 星系, 理论

Abstract: In this paper we summarize part of our work presented in the thesis of Yang, et al. entitled "The Statistical Research of Large Scale Structure in the Universe". There are four chapters in the thesis: chapter 1, the background of the large scale structure and galaxy formation; chapter 2, constructing a LAMOST mock catalogue; chapter 3, the applications of the discrete wavelet transformation in the large scale structure studies; and chapter 4, linking the galaxies with dark matter halos. Here we focus on the work presented in chapter 4, where we used the weak lensing measurements to constrain the galaxy luminosity-dark matter halo relations and established a conditional luminosity function model (L|M)dL, which gives the number of galaxies with luminosities in the range L ± dL/2 that reside in a halo of mass M. The conditional luminosity function derived from the present data plays an important role in the establishing of the galaxy formation models and can help us to predict several statistics about the distribution of galaxy light in the local Universe. We show that roughly 50 percent of all light is produced in haloes less massive than 2 × 1012 h−1M⊙.